update rails to 4.1
use strong parameters for account/edit
use cancancan
replace admin namespace with rails_admin
better rails_admin formating
add rollbar gem
rails 4.1 is threadsafe
remove staging env file
use mongoid github version
remove mongoid monkey patch
add rails_12factor gem
update doorkeeper
update mongoid config
Merge pull request #72 from barodeur/rails_41

Rails 4.1 & mongoid 4 & rails_admin